'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')

function resolve(dir) {
  return path.join(__dirname, dir)
}

const externals = {
  vue: 'Vue',
  'vue-router': 'VueRouter',
  vuex: 'Vuex',
  axios: 'axios',
  'element-ui': 'ELEMENT'
}
// CDN外链，会插入到index.html中
const cdn = {
  css: [
    'https://cdn.staticfile.org/element-ui/2.13.0/theme-chalk/index.css'
  ],
  js: [
    'https://cdn.staticfile.org/vue/2.6.11/vue.min.js',
    'https://cdn.staticfile.org/vue-router/3.1.3/vue-router.min.js',
    'https://cdn.staticfile.org/vuex/3.1.3/vuex.min.js',
    'https://cdn.staticfile.org/axios/0.19.2/axios.min.js',
    'https://cdn.staticfile.org/element-ui/2.13.0/index.js'
  ]
}

const name = defaultSettings.title || '直播游仙' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9527 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: process.env.NODE_ENV === 'production' ? './' : '/',
  outputDir: 'youxianadmin',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    port: port,
    open: false,
    proxy: {
      // http://open.xiaoxiaopao.cn/
      // '/FinanceAdmin': {
      //   target: 'http://youxiantec.xishuw.com',
      //   secure: false,
      //   changeOrigin: true
      // },
      // 代理百度编辑器地址
      '/Admin': {
        target: 'http://youxian.xishuw.com',
        secure: false,
        changeOrigin: true
      },
      'view': {
        target: 'http://opentec.xishuw.cn/',
        secure: false,
        changeOrigin: true
      }
    },
    // 在浏览器上全屏显示编译的errors或warnings
    overlay: {
      warnings: false,
      errors: false
    }
  },
  configureWebpack: config => {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    config.name = name
    config.resolve.alias = { '@': resolve('src') }
    if (process.env.NODE_ENV === 'production') {
      const CompressionPlugin = require('compression-webpack-plugin')
      // 移除 console
      config.optimization.minimizer[0].options.terserOptions.compress.drop_console = true
      // GZIP
      config.externals = externals
      config.plugins.push(
        new CompressionPlugin({
          filename: '[path].gz[query]',
          algorithm: 'gzip',
          test: new RegExp('\\.(' + ['js', 'css'].join('|') + ')$'),
          threshold: 8192,
          minRatio: 0.8
        })
      )
    }
  },
  chainWebpack(config) {
    config.plugins.delete('preload') // TODO: need test
    config.plugins.delete('prefetch') // TODO: need test
    // cdn
    config
      .plugin('html')
      .tap(args => {
        if (process.env.NODE_ENV === 'production') {
          args[0].cdn = cdn
        }
        return args
      })
    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    // set preserveWhitespace
    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap(options => {
        options.compilerOptions.preserveWhitespace = true
        return options
      })
      .end()

    config
      // https://webpack.js.org/configuration/devtool/#development
      .when(process.env.NODE_ENV === 'development',
        config => config.devtool('cheap-source-map')
      )

    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .plugin('ScriptExtHtmlWebpackPlugin')
            .after('html')
            .use('script-ext-html-webpack-plugin', [{
              // `runtime` must same as runtimeChunk name. default is `runtime`
              inline: /runtime\..*\.js$/
            }])
            .end()
          config
            .optimization.splitChunks({
              chunks: 'all',
              cacheGroups: {
                libs: {
                  name: 'chunk-libs',
                  test: /[\\/]node_modules[\\/]/,
                  priority: 10,
                  chunks: 'initial' // only package third parties that are initially dependent
                },
                // elementUI: {
                //   name: 'chunk-elementUI', // split elementUI into a single package
                //   priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                //   test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
                // },
                commons: {
                  name: 'chunk-commons',
                  test: resolve('src/components'), // can customize your rules
                  minChunks: 3, //  minimum common number
                  priority: 5,
                  reuseExistingChunk: true
                }
              }
            })
          config.optimization.runtimeChunk('single')
        }
      )
  }
}
